Netflix only released the Sony-animated K-Pop Demon Hunters movie two weeks ago, but its catchy soundtrack is already beating out established K-pop artists in the US. “Your Idol” by the Saja Boys — the movie’s villainous and entirely fictional boy band backed by some respected voices — hit No.2 on the US Spotify chart Thursday, dethroning BTS as the highest-charting K-pop band in US Spotify history.